Table S2: Growth responses of budding yeast (S. cerevisiae) and three bacterial species (S.aureus, P. aeruginosa and E.coli) to different concentrations of H2O2 and I2 in culture media.

H2O2 concentration / Growth (+/-)
S. aureus / P. aeruginosa / E. coli / S. cerevisiae
10 µM / + / + / + / +
25 µM / + / + / + / +
50 µM / + / + / + / +
75 µM / + / + / + / +
100 µM / + / + / + / +
150 µM / + / + / + / +
200 µM / - / + / + / +
250 µM / - / + / + / +
300 µM / - / + / + / +
400 µM / - / + / + / +
500 µe / - / + / + / +
600 µM / - / + / + / +
800 µM / - / + / - / +
1mM / - / + / - / +
1.5mM / - / + / - / +
2mM / - / + / - / +
2.5mM / - / + / - / +
3mM / - / + / - / +
4mM / - / - / - / -
5mM / - / - / - / -
10mM / - / - / - / -
I2 concentration / Growth +/-
S. aureus / P.
aeruginosa / E.coli / S. cerevisiae
25 µM / + / + / + / +
50 µM / + / + / + / +
100 µM / + / + / + / +
150 µM / + / + / + / +
200 µM / + / + / + / +
250 µM / + / + / + / +
300 µM / + / + / + / -
400 µM / - / + / + / -
500 µM / - / + / + / -
600 µM / - / - / - / -
700 µM / - / - / - / -
800 µM / - / - / - / -
900 µM / - / - / - / -
1mM / - / - / - / -

For each compound, the lowest concentration at which visually detectable growth (turbidity) did not take place was taken as a minimum inhibitory concentration (MIC). MIC values are shown as shaded boxes.